用STATA做DEAppt课件教案.ppt
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1、DEA in StataDEA in Stata用STATA做DEAppt课件 Still waters run deep.流流静静水深水深,人人静静心深心深 Where there is life,there is hope。有生命必有希望。有生命必有希望DEA in StataDEA in StataOutlineOutline1.1.Why DEA in Stata?Why DEA in Stata?2.2.The Basics of DEAThe Basics of DEA3.3.The Stata/DEA programThe Stata/DEA program4.4.Stata/D
2、EA ExamplesStata/DEA Examples5.5.DEA Frontiers in Stata?DEA Frontiers in Stata?6.6.ReferencesReferencesDEA in StataDEA in Stata1.Why DEA in Stata?Software Tools for Frontier AnalysisSoftware Tools for Frontier AnalysisSoftware Tools for Frontier AnalysisMethod Data Envelopment AnalysisStochastic Fro
3、ntier Analysis LanguageAMPL,GAMS,Mathematica,SAS,VBA Matlab,RProgramDEA Excel Solver,DEAP(v 2.1),DEAQual,DEA-Solver-Pro,EMS,FEAR,Frontier Analyst,OnFront,PIM-DEAsoft,Pioneer,Warwick DEA,MaxDEA,KonSi DEA,ISYDS(SIAD),xlDEA,LIMDEP,StoNEDStata,BSFM,Frontier(v 4.1),WinBUGS,LIMDEP,StoNEDOnlineProgramDEA S
4、olver Online,iDEA.DEA in StataDEA in Stata1.Why DEA in Stata?(cont.)DEA literatures by Year(2001-2009)DEA literatures by Year(2001-2009)DEA literatures by Year(2001-2009)more to go D/B:Science Direct,EBSCO,Google scholar,*SCI,SSCI Query:DEA or Data Envelopment Analysis in title,key word,abstractDEA
5、in StataDEA in Stata1.Why DEA in Stata?(cont.)DEA literatures by Journal(2001-2009)DEA literatures by Journal(2001-2009)DEA literatures by Journal(2001-2009)Source TitleRecord Count%of 446European J.of Oper.Res.9320.8J.of the Oper.Res.Society378.3App.Math.and Computation368.1J.of Prod.Ana.306.7Omega
6、-Int.of Management Sci.214.7Comp.&Oper.Research153.3Expert Systems with Applications132.9Annal of Oper.Res.102.2App.Economics102.2Int.J.of Infor.Tech.&Decision Making102.2DEA in StataDEA in StataDEA literatures by Subject(2001-2009)DEA literatures by Subject(2001-2009)DEA literatures by Subject(2001
7、-2009)1.Why DEA in Stata?(cont.)DEA in StataDEA in Stata Stata is easy to use and powerful statistical software;Stata is easy to use and powerful statistical software;Stata is easy to use and powerful statistical software;Data Envelopment Analysis code in Stata will Data Envelopment Analysis code in
8、 Stata will Data Envelopment Analysis code in Stata will promote the efficiency in data management for DEA promote the efficiency in data management for DEA promote the efficiency in data management for DEA users and open new application areas in statistical users and open new application areas in s
9、tatistical users and open new application areas in statistical inference for Stata users.inference for Stata users.inference for Stata users.1.Why DEA in Stata?(cont.)DEA in StataDEA in Stata2.The Basics of DEA(cont.)2.The Basics of DEA(cont.)DEA ConceptDEA ConceptDEA ConceptTechnology+Decision Maki
10、ngInputsOutputsequipmentspace#type B labor#type A customer#type B customerquality indexoper.profitPerformance(Efficiency,Productivity)=OutputsInputs?#type A labor.DEA in StataDEA in Stata2.The Basics of DEA(cont.)2.The Basics of DEA(cont.)Assumptions to analyze the black boxAssumptions to analyze th
11、e black boxAssumptions to analyze the black boxl llEconomic Behaviors:No input,no output!Economic Behaviors:No input,no output!Economic Behaviors:No input,no output!Economic Behaviors:No input,no output!Economic Behaviors:No input,no output!Economic Behaviors:No input,no output!l ll(Free)Disposabili
12、ty(Free)Disposability(Free)Disposability(Free)Disposability(Free)Disposability(Free)Disposabilityl llConvexityConvexityConvexityConvexityConvexityConvexityl llFrontier Search:Piece-wise Linear MethodFrontier Search:Piece-wise Linear MethodFrontier Search:Piece-wise Linear MethodFrontier Search:Piece
13、-wise Linear MethodFrontier Search:Piece-wise Linear MethodFrontier Search:Piece-wise Linear Methodl llScale EconomyScale EconomyScale EconomyScale EconomyScale EconomyScale Economyl llOrientation:Input-based or Output-based AnalysisOrientation:Input-based or Output-based AnalysisOrientation:Input-b
14、ased or Output-based AnalysisOrientation:Input-based or Output-based AnalysisOrientation:Input-based or Output-based AnalysisOrientation:Input-based or Output-based Analysisl llInterpretation of DEA ResultsInterpretation of DEA ResultsInterpretation of DEA Resultsl llX-inefficiencyX-inefficiencyX-in
15、efficiencyX-inefficiencyX-inefficiencyX-inefficiencyl llRational Choice of Input-Output MixesRational Choice of Input-Output MixesRational Choice of Input-Output MixesRational Choice of Input-Output MixesRational Choice of Input-Output MixesRational Choice of Input-Output Mixesl llPerformancePerform
16、ancePerformancePerformancePerformancePerformancel llDEA in StataDEA in Stata2.The Basics of DEA(cont.)2.The Basics of DEA(cont.)Terms&NotationsTerms&NotationsTerms&Notationsl ll :Input,output matrix :Input,output matrix :Input,output matrix :Input,output matrix :Input,output matrix :Input,output mat
17、rix l ll :Row vector :Row vector :Row vector :Row vector :Row vector :Row vector l ll :Non-negativity vector :Non-negativity vector :Non-negativity vector :Non-negativity vector :Non-negativity vector :Non-negativity vectorl ll :Real variable :Real variable :Real variable :Real variable :Real variab
18、le :Real variablel llDecision Making Units(DMUs)Decision Making Units(DMUs)Decision Making Units(DMUs)Decision Making Units(DMUs)Decision Making Units(DMUs)Decision Making Units(DMUs)DEA in StataDEA in Stata2.The Basics of DEA(cont.)2.The Basics of DEA(cont.)Basic DEA Models:CCR,BCCBasic DEA Models:
19、CCR,BCCBasic DEA Models:CCR,BCCOrientationOrientationPrimalPrimalDualDualInput Input OrientedOrientedOutput Output OrientedOriented()*is the additional constraint in BCC model DEA in StataDEA in Stata Characteristics of DEACharacteristics of DEACharacteristics of DEAl ll No assumption about Input-Ou
20、tput Function No assumption about Input-Output Function No assumption about Input-Output Functionl ll No limits to the number of inputs and outputsNo limits to the number of inputs and outputsNo limits to the number of inputs and outputsl ll Not required to weight restrictionsNot required to weight
21、restrictionsNot required to weight restrictionsl ll Provide reference sets for benchmarkingProvide reference sets for benchmarkingProvide reference sets for benchmarkingl ll Provide useful information for input-output mix decisionProvide useful information for input-output mix decisionProvide useful
22、 information for input-output mix decisionl ll n times computations for n DMUs n times computations for n DMUs n times computations for n DMUs2.The Basics of DEA(cont.)2.The Basics of DEA(cont.)DEA in StataDEA in Stata3.The Stata/DEA programUser Written Stata/DEA Description User Written Stata/DEA D
23、escription User Written Stata/DEA Description l llConsidered the basic DEA models(CCR&BCC)Considered the basic DEA models(CCR&BCC)Considered the basic DEA models(CCR&BCC)l llCan handle both input minimization and output Can handle both input minimization and output Can handle both input minimization
24、 and output maximization problemsmaximization problemsmaximization problemsl llThe data flow in the Stata/DEA programThe data flow in the Stata/DEA programThe data flow in the Stata/DEA programthe input and output variables data sets requiredthe input and output variables data sets requiredthe input
25、 and output variables data sets requiredthe DEA options define the modelthe DEA options define the modelthe DEA options define the modelthe“Stata/DEA”program consists of “basic”and“lp”subroutinethe“Stata/DEA”program consists of “basic”and“lp”subroutinethe“Stata/DEA”program consists of “basic”and“lp”
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